625152020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{2237}}^1$

素因数の和:2492

約数の個数: 48

約数和(自身を含む): 1336623120

約数和(自身を除く): 711471100

約数列:

[1, 2, 4, 5, 10, 20, 89, 157, 178, 314, 356, 445, 628, 785, 890, 1570, 1780, 2237, 3140, 4474, 8948, 11185, 13973, 22370, 27946, 44740, 55892, 69865, 139730, 199093, 279460, 351209, 398186, 702418, 796372, 995465, 1404836, 1756045, 1990930, 3512090, 3981860, 7024180, 31257601, 62515202, 125030404, 156288005, 312576010, 625152020]

約数ペア:

[(1, 625152020), (2, 312576010), (4, 156288005), (5, 125030404), (10, 62515202), (20, 31257601), (89, 7024180), (157, 3981860), (178, 3512090), (314, 1990930), (356, 1756045), (445, 1404836), (628, 995465), (785, 796372), (890, 702418), (1570, 398186), (1780, 351209), (2237, 279460), (3140, 199093), (4474, 139730), (8948, 69865), (11185, 55892), (13973, 44740), (22370, 27946)]